and this was a sign that the fbi was increasingly focusing on the fence at the university of california. and in particular, first amendment activities. one way we know this is through the workforce. one of the former fbi agents i interviewed was a man named -- the special agent in charge of the office, and he provided me the personnel roster, and what it showed was approximately 40% or 50% of agents were devoted to security type investigations, and a much smaller proportion were devoted to traditional investigating traditional crime or espionage. so hoover's priorities were very clear. he was focusing on dissent at that time. >> so, i want to move on before, if we can, briefly, you discovered, having expanded since the book came out the role of informants, that is, a people operating at the direction of the fbi, and one of them you develop come in the book and you have subsequent documents, maybe you can explain how you discovered this and what it means. >> right. i believe you are referring to an informant named richard aop. well, the way i learned about richard was one day i was inter